Because humans have a need to reach space, and there is no other way to reach space. Reaching space has many benefits, including communication, navigation, mapping and exploration. New space crafts are constantly being invented because new technology allows for safer and more efficient space crafts.
NASA has sent a total of 5 space crafts to mars.
the Sputnik was the first Russian spacecraft
this pen was invented for use in space
Manned space crafts and equipment.
The first space shuttle invented was the space shuttle enterprise.
No
NASA has sent a total of 5 space crafts to mars.
Saturn was discovered by ancient Greeks and Romans, so sorry no space crafts.
No
suck it
Docking
You build space craft in order to get to and travel round in space.
site for launching space crafts
non
1
no one knows
yes it is used in space crfts and space suit to protect them from heat and light